Adaptive Frequency Sweep Linearization based on Phase Accumulator Principle

摘要

A novel approach to in-system monitoring of frequency sweep linearity is presented. Phase error measurement is carried out using a phase accumulator such as known from direct digital synthesizers (DDS) [1]. The successful application of this monitoring concept in an adaptive frequency sweep linearization system is shown by measurements of a 77-GHz linear frequency modulated continuous wave (LFMCW) radar transmitter.